/*-
 * <<
 * task
 * ==
 * Copyright (C) 2019 sia
 * ==
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * >>
 */

package com.sia.config.web.util;

import java.util.List;
import lombok.Data;

/**
 * page bean
 *
 * @see
 * @author maozhengwei
 * @date 2019-04-28 15:40
 * @version V1.0.0
 */
public @Data class PageBean<T> {

  /** current page */
  private Integer currentPage = 1;

  /** Total number of entries per page */
  private Integer pageSize = 10;

  /** total number */
  private Integer totalNum;

  /** Is there a next page */
  private Integer isMore;

  /** number of total pages */
  private Integer totalPage;

  /** The starting index */
  private Integer startIndex;

  /** Paging results */
  private List<T> items;

  public PageBean() {
    super();
  }

  public PageBean(Integer currentPage, Integer pageSize, Integer totalNum) {
    super();
    this.currentPage = currentPage;
    this.pageSize = pageSize;
    this.totalNum = totalNum;
    this.totalPage = (this.totalNum + this.pageSize - 1) / this.pageSize;
    this.startIndex = (this.currentPage - 1) * this.pageSize;
    this.isMore = this.currentPage >= this.totalPage ? 0 : 1;
  }
}
